gnu: Move database packages from python.scm to databases.scm.

* gnu/packages/python.scm (python-ccm, python2-ccm, python2-pysqlite,
python-sqlalchemy, python2-sqlalchemy, python-sqlalchemy-utils,
python2-sqlalchemy-utils, python-alembic, python2-alembic,
python-pickleshare, python2-pickleshare, python-apsw, python2-apsw,
python2-neo4j-driver, python2-py2neo, python-psycopg2, python2-psycopg2,
python-sadisplay, python2-sadisplay, python-mysqlclient,
python2-mysqlclient, python-hiredis, python2-hiredis, python-fakeredis,
python2-fakeredis, python-redis, python2-redis, python-rq, python2-rq,
python-trollius-redis, python2-trollius-redis, python-sqlparse,
python2-sqlparse, python-sql, python2-sql): Move from here...
* gnu/packages/databases.scm: ...to here.
* gnu/packages/tryton.scm,
gnu/packages/python-web.scm,
gnu/packages/nutrition.scm,
gnu/packages/medical.scm: Adjust accordingly.

6 files changed, 562 insertions, 552 deletions

diff --git a/gnu/packages/databases.scm b/gnu/packages/databases.scm
index 6bc468679a..b825a24528 100644
--- a/gnu/packages/databases.scm
+++ b/gnu/packages/databases.scm
@@ -1,27 +1,34 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2012, 2013, 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
-;;; Copyright © 2012, 2014, 2015 Andreas Enge <andreas@enge.fr>
-;;; Copyright © 2013 Cyril Roelandt <tipecaml@gmail.com>
+;;; Copyright © 2012, 2013, 2014, 2015, 2016 Andreas Enge <andreas@enge.fr>
+;;; Copyright © 2013, 2017 Cyril Roelandt <tipecaml@gmail.com>
 ;;; Copyright © 2014, 2016 David Thompson <davet@gnu.org>
 ;;; Copyright © 2014, 2015, 2016 Mark H Weaver <mhw@netris.org>
-;;; Copyright © 2015 Eric Bavier <bavier@member.fsf.org>
+;;; Copyright © 2014, 2015 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2015, 2016 Sou Bunnbu <iyzsong@gmail.com>
 ;;; Copyright © 2015 Leo Famulari <leo@famulari.name>
-;;; Copyright © 2016, 2017 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2015 Eric Dvorsak <eric@dvorsak.fr>
+;;; Copyright © 2016 Hartmut Goebel <h.goebel@crazy-compilers.com>
+;;; Copyright © 2016 Christopher Allan Webber <cwebber@dustycloud.org>
+;;; Copyright © 2015, 2016, 2017 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016, 2017 ng0 <contact.ng0@cryptolab.net>
 ;;; Copyright © 2016, 2017 Roel Janssen <roel@gnu.org>
 ;;; Copyright © 2016 David Craven <david@craven.ch>
 ;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
 ;;; Copyright © 2016 Andy Patterson <ajpatter@uwaterloo.ca>
-;;; Copyright © 2017 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2016 Danny Milosavljevic <dannym+a@scratchpost.org>
+;;; Copyright © 2016, 2017 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2017 Julien Lepiller <julien@lepiller.eu>
 ;;; Copyright © 2017 Thomas Danckaert <post@thomasdanckaert.be>
+;;; Copyright © 2017 Jelle Licht <jlicht@fsfe.org>
+;;; Copyright © 2017 Adriano Peluso <catonano@gmail.com>
 ;;; Copyright © 2017 Arun Isaac <arunisaac@systemreboot.net>
 ;;; Copyright © 2017 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2017 Alex Vong <alexvong1995@gmail.com>
 ;;; Copyright © 2017 Ben Woodcroft <donttrustben@gmail.com>
 ;;; Copyright © 2017 Rutger Helling <rhelling@mykolab.com>
 ;;; Copyright © 2017 Pierre Langlois <pierre.langlois@gmx.com>
-;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2015, 2017 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2017 Kristofer Buffington <kristoferbuffington@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -1950,3 +1957,548 @@ package contains an old implementation based on legacy code from S-PLUS which
 is being phased out.  A modern MySQL client based on Rcpp is available from
 the RMariaDB package.")
     (license license:gpl2)))
+
+(define-public python-ccm
+  (package
+    (name "python-ccm")
+    (version "2.1.6")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "ccm" version))
+       (sha256
+        (base32
+         "177dfxsmk3k4cih6fh6v8d91bh4nqx7ns6pc07w7m7i3cvdx3c8n"))))
+    (build-system python-build-system)
+    (propagated-inputs
+     `(("python-pyyaml" ,python-pyyaml)
+       ;; Not listed in setup.py, but used in ccmlib/node.py for full
+       ;; functionality
+       ("python-psutil" ,python-psutil)
+       ("python-six" ,python-six)))
+    (home-page "https://github.com/pcmanus/ccm")
+    (synopsis "Cassandra Cluster Manager for Apache Cassandra clusters on
+localhost")
+    (description "Cassandra Cluster Manager is a development tool for testing
+local Cassandra clusters. It creates, launches and removes Cassandra clusters
+on localhost.")
+    (license license:asl2.0)))
+
+(define-public python2-ccm
+  (package-with-python2 python-ccm))
+
+(define-public python2-pysqlite
+  (package
+    (name "python2-pysqlite")
+    (version "2.8.3")
+    (source
+     (origin
+      (method url-fetch)
+      (uri (pypi-uri "pysqlite" version))
+      (sha256
+       (base32
+        "1424gwq9sil2ffmnizk60q36vydkv8rxs6m7xs987kz8cdc37lqp"))))
+    (build-system python-build-system)
+    (inputs
+     `(("sqlite" ,sqlite)))
+    (arguments
+     `(#:python ,python-2 ; incompatible with Python 3
+       #:tests? #f)) ; no test target
+    (home-page "https://github.com/ghaering/pysqlite")
+    (synopsis "SQLite bindings for Python")
+    (description
+     "Pysqlite provides SQLite bindings for Python that comply to the
+Database API 2.0T.")
+    (license license:zlib)))
+
+(define-public python-sqlalchemy
+  (package
+    (name "python-sqlalchemy")
+    (version "1.0.12")
+    (source
+     (origin
+      (method url-fetch)
+      (uri (string-append "https://pypi.python.org/packages/source/S/"
+                          "SQLAlchemy/SQLAlchemy-" version ".tar.gz"))
+      (sha256
+       (base32
+        "1l8qclhd0s90w3pvwhi5mjxdwr5j7gw7cjka2fx6f2vqmq7f4yb6"))))
+    (build-system python-build-system)
+    (native-inputs
+     `(("python-cython" ,python-cython) ;for c extensions
+       ("python-pytest" ,python-pytest)
+       ("python-mock"   ,python-mock))) ;for tests
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (replace 'check
+           (lambda _ (zero? (system* "py.test")))))))
+    (home-page "http://www.sqlalchemy.org")
+    (synopsis "Database abstraction library")
+    (description
+     "SQLAlchemy is the Python SQL toolkit and Object Relational Mapper that
+gives application developers the full power and flexibility of SQL.  It
+provides a full suite of well known enterprise-level persistence patterns,
+designed for efficient and high-performing database access, adapted into a
+simple and Pythonic domain language.")
+    (license license:x11)))
+
+(define-public python2-sqlalchemy
+  (package-with-python2 python-sqlalchemy))
+
+(define-public python-sqlalchemy-utils
+  (package
+    (name "python-sqlalchemy-utils")
+    (version "0.32.13")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (pypi-uri "SQLAlchemy-Utils" version))
+        (sha256
+         (base32
+          "0vsib7gidjamzsz6w4s5pdhxzxsrkghjnm4sqwk94igjrl3i5ixj"))))
+    (build-system python-build-system)
+    (arguments
+     '(#:tests? #f)) ; FIXME: Many tests require a running database server.
+       ;; #:phases
+       ;; (modify-phases %standard-phases
+       ;;   (replace 'check
+       ;;     (lambda _
+       ;;       (zero? (system* "py.test" "sqlalchemy_utils" "tests")))))
+    (propagated-inputs
+     `(("python-six" ,python-six)
+       ("python-sqlalchemy" ,python-sqlalchemy)))
+    (native-inputs
+     `(("python-dateutil" ,python-dateutil)
+       ("python-flexmock" ,python-flexmock)
+       ("python-psycopg2" ,python-psycopg2)
+       ("python-pytest" ,python-pytest)
+       ("python-pytz" ,python-pytz)))
+    (home-page "https://github.com/kvesteri/sqlalchemy-utils")
+    (synopsis "Various utility functions for SQLAlchemy")
+    (description
+     "SQLAlchemy-utils provides various utility functions and custom data types
+for SQLAlchemy.  SQLAlchemy is an SQL database abstraction library for Python.
+
+You might also want to install the following optional dependencies:
+@enumerate
+@item @code{python-passlib}
+@item @code{python-babel}
+@item @code{python-cryptography}
+@item @code{python-pytz}
+@item @code{python-psycopg2}
+@item @code{python-furl}
+@item @code{python-flask-babel}
+@end enumerate
+")
+    (license license:bsd-3)))
+
+(define-public python2-sqlalchemy-utils
+  (package-with-python2 python-sqlalchemy-utils))
+
+(define-public python-alembic
+  (package
+    (name "python-alembic")
+    (version "0.9.5")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "alembic" version))
+       (sha256
+        (base32
+         "01gx2syqbaxh4hr9pf7pxhlb6p36qaf99140dy19lsx1paxb9p4b"))))
+    (build-system python-build-system)
+    (native-inputs
+     `(("python-mock" ,python-mock)
+       ("python-pytest-cov" ,python-pytest-cov)))
+    (propagated-inputs
+     `(("python-dateutil" ,python-dateutil)
+       ("python-sqlalchemy" ,python-sqlalchemy)
+       ("python-mako" ,python-mako)
+       ("python-editor" ,python-editor)))
+    (home-page "http://bitbucket.org/zzzeek/alembic")
+    (synopsis
+     "Database migration tool for SQLAlchemy")
+    (description
+     "Alembic is a lightweight database migration tool for usage with the
+SQLAlchemy Database Toolkit for Python.")
+    (license license:expat)))
+
+(define-public python2-alembic
+  (package-with-python2 python-alembic))
+
+(define-public python-pickleshare
+  (package
+    (name "python-pickleshare")
+    (version "0.5")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://pypi.python.org/packages/source/p/"
+                           "pickleshare/pickleshare-" version ".tar.gz"))
+       (sha256
+        (base32 "11ljr90j3p6qswdrbl7p4cjb2i93f6vn0vx9anzpshsx0d2mggn0"))))
+    (build-system python-build-system)
+    (propagated-inputs
+     `(("python-pathpy" ,python-pathpy)))
+    (home-page "https://github.com/vivainio/pickleshare")
+    (synopsis "Tiny key value database with concurrency support")
+    (description
+     "PickleShare is a small ‘shelve’-like datastore with concurrency support.
+Like shelve, a PickleShareDB object acts like a normal dictionary.  Unlike
+shelve, many processes can access the database simultaneously.  Changing a
+value in database is immediately visible to other processes accessing the same
+database.  Concurrency is possible because the values are stored in separate
+files.  Hence the “database” is a directory where all files are governed by
+PickleShare.")
+    (license license:expat)))
+
+(define-public python2-pickleshare
+  (package-with-python2 python-pickleshare))
+
+(define-public python-apsw
+  (package
+    (name "python-apsw")
+    (version "3.9.2-r1")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (pypi-uri "apsw" version))
+        (sha256
+          (base32
+           "0w4jb0wpx785qw42r3h4fh7gl5w2968q48i7gygybsfxck8nzffs"))))
+    (build-system python-build-system)
+    (inputs
+      `(("sqlite" ,sqlite)))
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (replace 'build
+           (lambda _
+             (zero?
+              (system* "python" "setup.py" "build" "--enable-all-extensions"))))
+         (add-after 'build 'build-test-helper
+           (lambda _
+             (zero?
+              (system
+               (string-append "gcc -fPIC -shared -o ./testextension.sqlext "
+                              "-I. -Isqlite3 src/testextension.c") ))))
+         (delete 'check)
+         (add-after 'install 'check
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (add-installed-pythonpath inputs outputs)
+             (zero? (system* "python" "setup.py" "test")))))))
+    (home-page "https://github.com/rogerbinns/apsw/")
+    (synopsis "Another Python SQLite Wrapper")
+    (description "APSW is a Python wrapper for the SQLite
+embedded relational database engine.  In contrast to other wrappers such as
+pysqlite it focuses on being a minimal layer over SQLite attempting just to
+translate the complete SQLite API into Python.")
+    (license license:zlib)))
+
+(define-public python2-apsw
+  (package-with-python2 python-apsw))
+
+(define-public python2-neo4j-driver
+  (package
+    (name "python2-neo4j-driver")
+    ;; NOTE: When upgrading to 1.5.0, please add a python3 variant.
+    (version "1.4.0")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "neo4j-driver" version))
+              (sha256
+               (base32
+                "011r1vh182p8mm83d8dz9rfnc3l7rf7fd00cyrbyfzi71jmc4g98"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:python ,python-2))
+    (home-page "https://neo4j.com/developer/python/")
+    (synopsis "Neo4j driver code written in Python")
+    (description "This package provides the Neo4j Python driver that connects
+to the database using Neo4j's binary protocol.  It aims to be minimal, while
+being idiomatic to Python.")
+    (license license:asl2.0)))
+
+(define-public python2-py2neo
+  (package
+    (name "python2-py2neo")
+    (version "3.1.2")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "py2neo" version))
+              (sha256
+               (base32
+                "1f1q95vqcvlc3nsc33p841swnjdcjazddlq2dzi3qfnjqjrajxw1"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:python ,python-2))
+    (home-page "http://py2neo.org")
+    (synopsis "Library and toolkit for working with Neo4j in Python")
+    (description "This package provides a client library and toolkit for
+working with Neo4j from within Python applications and from the command
+line.  The core library has no external dependencies and has been carefully
+designed to be easy and intuitive to use.")
+    (license license:asl2.0)))
+
+(define-public python-psycopg2
+  (package
+    (name "python-psycopg2")
+    (version "2.7.3.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "psycopg2" version))
+       (sha256
+        (base32
+         "0rda1j02ds6s28752fhmpwg761sh6jsxi1gpczqkrd28cki1cywv"))))
+    (build-system python-build-system)
+    (arguments
+     ;; Tests would require a postgresql database "psycopg2_test"
+     ;; and a running postgresql database management service.
+     `(#:tests? #f)) ; TODO re-enable after providing a test-db.
+    (inputs
+     `(("postgresql" ,postgresql))) ; libpq
+    (home-page "http://initd.org/psycopg/")
+    (synopsis "Python PostgreSQL adapter")
+    (description
+     "psycopg2 is a thread-safe PostgreSQL adapter that implements DB-API 2.0. ")
+    (license license:lgpl3+)))
+
+(define-public python2-psycopg2
+  (package-with-python2 python-psycopg2))
+
+(define-public python-sadisplay
+  (package
+    (name "python-sadisplay")
+    (version "0.4.6")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (pypi-uri "sadisplay" version))
+      (sha256
+        (base32
+          "0zqad2fl7q26p090qmqgmxbm6iwgf9zij1w8da1g3wdgjj72ql05"))))
+    (build-system python-build-system)
+    (propagated-inputs
+      `(("python-sqlalchemy" ,python-sqlalchemy)))
+    (native-inputs
+      `(("python-nose" ,python-nose)))
+    (home-page "https://bitbucket.org/estin/sadisplay")
+    (synopsis "SQLAlchemy schema displayer")
+    (description "This package provides a program to build Entity
+Relationship diagrams from a SQLAlchemy model (or directly from the
+database).")
+    (license license:bsd-3)))
+
+(define-public python2-sadisplay
+  (package-with-python2 python-sadisplay))
+
+(define-public python-mysqlclient
+  (package
+    (name "python-mysqlclient")
+    (version "1.3.10")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "mysqlclient" version))
+       (sha256
+        (base32
+         "0qkj570x4rbsblji6frvsvp2v1ap32dqzj1lq62zp9515ffsyaj5"))))
+    (build-system python-build-system)
+    (native-inputs
+     `(("mariadb" ,mariadb)
+       ("nose" ,python-nose)
+       ("mock" ,python-mock)
+       ("py.test" ,python-pytest)))
+    (inputs
+     `(("mysql" ,mysql)
+       ("libz" ,zlib)
+       ("openssl" ,openssl)))
+    (home-page "https://github.com/PyMySQL/mysqlclient-python")
+    (synopsis "MySQLdb is an interface to the popular MySQL database server for Python")
+    (description "MySQLdb is an interface to the popular MySQL database server
+for Python.  The design goals are:
+@enumerate
+@item Compliance with Python database API version 2.0 [PEP-0249],
+@item Thread-safety,
+@item Thread-friendliness (threads will not block each other).
+@end enumerate")
+    (license license:gpl2)))
+
+(define-public python2-mysqlclient
+  (package-with-python2 python-mysqlclient))
+
+(define-public python-hiredis
+  (package
+    (name "python-hiredis")
+    (version "0.2.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "hiredis" version))
+       (sha256
+        (base32
+         "1dfm2k9l9zar9nw9fwmm74zrgraxdxs04vx9li56fjcf289qx5fa"))))
+    (build-system python-build-system)
+    (arguments
+     ;; no tests
+     `(#:tests? #f))
+    (home-page "https://github.com/redis/hiredis-py")
+    (synopsis "Python extension that wraps protocol parsing code in hiredis")
+    (description "Python-hiredis is a python extension that wraps protocol
+parsing code in hiredis.  It primarily speeds up parsing of multi bulk replies.")
+    (license license:bsd-3)))
+
+(define-public python2-hiredis
+  (package-with-python2 python-hiredis))
+
+(define-public python-fakeredis
+  (package
+    (name "python-fakeredis")
+    (version "0.8.2")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "fakeredis" version))
+       (sha256
+        (base32
+         "0zncahj3byyasyfx9i7k991ph0n0lq8v3a21pqri5qxn9564bk9r"))))
+    (build-system python-build-system)
+    (arguments
+     ;; no tests
+     `(#:tests? #f))
+    (home-page "https://github.com/jamesls/fakeredis")
+    (synopsis "Fake implementation of redis API for testing purposes")
+    (description "Fakeredis is a pure python implementation of the redis-py
+python client that simulates talking to a redis server.  This was created for a
+single purpose: to write unittests.  Setting up redis is not hard, but many time
+ you want to write unittests that do not talk to an external server (such as
+redis).  This module now allows tests to simply use this module as a reasonable
+substitute for redis.")
+    (license license:bsd-3)))
+
+(define-public python2-fakeredis
+  (package-with-python2 python-fakeredis))
+
+(define-public python-redis
+  (package
+    (name "python-redis")
+    (version "2.10.5")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "redis" version))
+       (sha256
+        (base32 "0csmrkxb29x7xs9b51zplwkkq2hwnbh9jns1g85dykn5rxmaxysx"))))
+    (build-system python-build-system)
+    ;; Tests require a running Redis server
+    (arguments '(#:tests? #f))
+    ;; As long as we are not running test, we do not need this input :-)
+    ;;(native-inputs
+    ;; `(("python-pytest" ,python-pytest)))
+    (home-page "https://github.com/andymccurdy/redis-py")
+    (synopsis "Redis Python client")
+    (description
+     "This package provides a Python interface to the Redis key-value store.")
+    (license license:expat)))
+
+(define-public python2-redis
+  (package-with-python2 python-redis))
+
+(define-public python-rq
+  (package
+    (name "python-rq")
+    (version "0.7.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "rq" version))
+       (sha256
+        (base32 "0gaq5pnh0zy46r8jvygi0ifbvz3pq6i7xla78ijcgjw0x77qzsdh"))))
+    (build-system python-build-system)
+    (propagated-inputs
+     `(("python-click" ,python-click)
+       ("python-redis" ,python-redis)))
+    (home-page "http://python-rq.org/")
+    (synopsis "Simple job queues for Python")
+    (description
+     "RQ (Redis Queue) is a simple Python library for queueing jobs and
+processing them in the background with workers.  It is backed by Redis and it
+is designed to have a low barrier to entry.")
+    (license license:bsd-2)))
+
+(define-public python2-rq
+  (package-with-python2 python-rq))
+
+(define-public python-trollius-redis
+  (package
+    (name "python-trollius-redis")
+    (version "0.1.4")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (pypi-uri "trollius_redis" version))
+        (sha256
+         (base32
+          "0k3vypszmgmaipgw9xscvgm79h2zd6p6ci8gdp5sxl6g5kbqr9fy"))))
+    (build-system python-build-system)
+    ;; TODO: Tests require packaging 'hiredis'.
+    (arguments '(#:tests? #f))
+    (home-page "https://github.com/benjolitz/trollius-redis")
+    (synopsis "Port of asyncio-redis to trollius")
+    (description "@code{trollius-redis} is a Redis client for Python
+  trollius.  It is an asynchronious IO (PEP 3156) implementation of the
+  Redis protocol.")
+    (license license:bsd-2)))
+
+(define-public python2-trollius-redis
+  (package-with-python2 python-trollius-redis))
+
+(define-public python-sqlparse
+  (package
+    (name "python-sqlparse")
+    (version "0.2.4")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "sqlparse" version))
+              (sha256
+               (base32
+                "1v3xh0bkfhb262dbndgzhivpnhdwavdzz8jjhx9vx0xbrx2880nf"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (replace 'check
+           (lambda _ (zero? (system* "py.test")))))))
+    (native-inputs
+     `(("python-pytest" ,python-pytest)))
+    (home-page "https://github.com/andialbrecht/sqlparse")
+    (synopsis "Non-validating SQL parser")
+    (description "Sqlparse is a non-validating SQL parser for Python.  It
+provides support for parsing, splitting and formatting SQL statements.")
+    (license license:bsd-3)))
+
+(define-public python2-sqlparse
+  (package-with-python2 python-sqlparse))
+
+(define-public python-sql
+  (package
+    (name "python-sql")
+    (version "0.9")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "python-sql" version))
+       (sha256
+        (base32
+         "0p6kaqj02vz0habmdx37zjk6hjxdfm8aw737zs059vvpr70ird87"))))
+    (build-system python-build-system)
+    (home-page "https://python-sql.tryton.org/")
+    (synopsis "Library to write SQL queries in a pythonic way")
+    (description "@code{python-sql} is a library to write SQL queries, that
+transforms idiomatic python function calls to well-formed SQL queries.")
+    (license license:bsd-3)))
+
+(define-public python2-sql
+  (package-with-python2 python-sql))
diff --git a/gnu/packages/medical.scm b/gnu/packages/medical.scm
index c0d9d597b7..3f96134a3c 100644
--- a/gnu/packages/medical.scm
+++ b/gnu/packages/medical.scm
@@ -22,6 +22,7 @@
   #:use-module (guix download)
   #:use-module (guix licenses)
   #:use-module (guix packages)
+  #:use-module (gnu packages databases)
   #:use-module (gnu packages python)
   #:use-module (gnu packages qt))
 
diff --git a/gnu/packages/nutrition.scm b/gnu/packages/nutrition.scm
index 9e0430b20a..90019f848c 100644
--- a/gnu/packages/nutrition.scm
+++ b/gnu/packages/nutrition.scm
@@ -23,6 +23,7 @@
   #:use-module (guix download)
   #:use-module (guix build-system python)
   #:use-module (gnu packages)
+  #:use-module (gnu packages databases)
   #:use-module (gnu packages gtk)
   #:use-module (gnu packages glib)
   #:use-module (gnu packages image)
diff --git a/gnu/packages/python-web.scm b/gnu/packages/python-web.scm
index 8b7bd0b8be..57938d0cfd 100644
--- a/gnu/packages/python-web.scm
+++ b/gnu/packages/python-web.scm
@@ -45,6 +45,7 @@
   #:use-module (gnu packages)
   #:use-module (gnu packages check)
   #:use-module (gnu packages compression)
+  #:use-module (gnu packages databases)
   #:use-module (gnu packages django)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages python)
diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm
index 0fa78ff568..7242f1791b 100644
--- a/gnu/packages/python.scm
+++ b/gnu/packages/python.scm
@@ -469,35 +469,6 @@ pidof, tty, taskset, pmap.")
 (define-public python2-psutil
   (package-with-python2 python-psutil))
 
-(define-public python-ccm
-  (package
-    (name "python-ccm")
-    (version "2.1.6")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (pypi-uri "ccm" version))
-       (sha256
-        (base32
-         "177dfxsmk3k4cih6fh6v8d91bh4nqx7ns6pc07w7m7i3cvdx3c8n"))))
-    (build-system python-build-system)
-    (propagated-inputs
-     `(("python-pyyaml" ,python-pyyaml)
-       ;; Not listed in setup.py, but used in ccmlib/node.py for full
-       ;; functionality
-       ("python-psutil" ,python-psutil)
-       ("python-six" ,python-six)))
-    (home-page "https://github.com/pcmanus/ccm")
-    (synopsis "Cassandra Cluster Manager for Apache Cassandra clusters on
-localhost")
-    (description "Cassandra Cluster Manager is a development tool for testing
-local Cassandra clusters. It creates, launches and removes Cassandra clusters
-on localhost.")
-    (license license:asl2.0)))
-
-(define-public python2-ccm
-  (package-with-python2 python-ccm))
-
 (define-public python-pytz
   (package
     (name "python-pytz")
@@ -1170,31 +1141,6 @@ get the local timezone information, unless you know the zoneinfo name, and
 under several distributions that's hard or impossible to figure out.")
     (license license:cc0)))
 
-(define-public python2-pysqlite
-  (package
-    (name "python2-pysqlite")
-    (version "2.8.3")
-    (source
-     (origin
-      (method url-fetch)
-      (uri (pypi-uri "pysqlite" version))
-      (sha256
-       (base32
-        "1424gwq9sil2ffmnizk60q36vydkv8rxs6m7xs987kz8cdc37lqp"))))
-    (build-system python-build-system)
-    (inputs
-     `(("sqlite" ,sqlite)))
-    (arguments
-     `(#:python ,python-2 ; incompatible with Python 3
-       #:tests? #f)) ; no test target
-    (home-page "https://github.com/ghaering/pysqlite")
-    (synopsis "SQLite bindings for Python")
-    (description
-     "Pysqlite provides SQLite bindings for Python that comply to the
-Database API 2.0T.")
-    (license license:zlib)))
-
-
 (define-public python2-mechanize
   (package
     (name "python2-mechanize")
@@ -2675,56 +2621,6 @@ and is very extensible.")
 (define-public python2-scikit-image
   (package-with-python2 python-scikit-image))
 
-(define-public python-redis
-  (package
-    (name "python-redis")
-    (version "2.10.5")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (pypi-uri "redis" version))
-       (sha256
-        (base32 "0csmrkxb29x7xs9b51zplwkkq2hwnbh9jns1g85dykn5rxmaxysx"))))
-    (build-system python-build-system)
-    ;; Tests require a running Redis server
-    (arguments '(#:tests? #f))
-    ;; As long as we are not running test, we do not need this input :-)
-    ;;(native-inputs
-    ;; `(("python-pytest" ,python-pytest)))
-    (home-page "https://github.com/andymccurdy/redis-py")
-    (synopsis "Redis Python client")
-    (description
-     "This package provides a Python interface to the Redis key-value store.")
-    (license license:expat)))
-
-(define-public python2-redis
-  (package-with-python2 python-redis))
-
-(define-public python-rq
-  (package
-    (name "python-rq")
-    (version "0.7.1")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (pypi-uri "rq" version))
-       (sha256
-        (base32 "0gaq5pnh0zy46r8jvygi0ifbvz3pq6i7xla78ijcgjw0x77qzsdh"))))
-    (build-system python-build-system)
-    (propagated-inputs
-     `(("python-click" ,python-click)
-       ("python-redis" ,python-redis)))
-    (home-page "http://python-rq.org/")
-    (synopsis "Simple job queues for Python")
-    (description
-     "RQ (Redis Queue) is a simple Python library for queueing jobs and
-processing them in the background with workers.  It is backed by Redis and it
-is designed to have a low barrier to entry.")
-    (license license:bsd-2)))
-
-(define-public python2-rq
-  (package-with-python2 python-rq))
-
 (define-public python-cython
   (package
     (name "python-cython")
@@ -3713,41 +3609,6 @@ as the original project seems to have been abandoned circa 2007.")
 (define-public python2-socksipy-branch
   (package-with-python2 python-socksipy-branch))
 
-(define-public python-sqlalchemy
-  (package
-    (name "python-sqlalchemy")
-    (version "1.0.12")
-    (source
-     (origin
-      (method url-fetch)
-      (uri (string-append "https://pypi.python.org/packages/source/S/"
-                          "SQLAlchemy/SQLAlchemy-" version ".tar.gz"))
-      (sha256
-       (base32
-        "1l8qclhd0s90w3pvwhi5mjxdwr5j7gw7cjka2fx6f2vqmq7f4yb6"))))
-    (build-system python-build-system)
-    (native-inputs
-     `(("python-cython" ,python-cython) ;for c extensions
-       ("python-pytest" ,python-pytest)
-       ("python-mock"   ,python-mock))) ;for tests
-    (arguments
-     `(#:phases
-       (modify-phases %standard-phases
-         (replace 'check
-           (lambda _ (zero? (system* "py.test")))))))
-    (home-page "http://www.sqlalchemy.org")
-    (synopsis "Database abstraction library")
-    (description
-     "SQLAlchemy is the Python SQL toolkit and Object Relational Mapper that
-gives application developers the full power and flexibility of SQL.  It
-provides a full suite of well known enterprise-level persistence patterns,
-designed for efficient and high-performing database access, adapted into a
-simple and Pythonic domain language.")
-    (license license:x11)))
-
-(define-public python2-sqlalchemy
-  (package-with-python2 python-sqlalchemy))
-
 (define-public python-pycodestyle
   (package
     (name "python-pycodestyle")
@@ -3835,87 +3696,6 @@ retried.")
 (define-public python2-flaky
   (package-with-python2 python-flaky))
 
-(define-public python-sqlalchemy-utils
-  (package
-    (name "python-sqlalchemy-utils")
-    (version "0.32.13")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (pypi-uri "SQLAlchemy-Utils" version))
-        (sha256
-         (base32
-          "0vsib7gidjamzsz6w4s5pdhxzxsrkghjnm4sqwk94igjrl3i5ixj"))))
-    (build-system python-build-system)
-    (arguments
-     '(#:tests? #f)) ; FIXME: Many tests require a running database server.
-       ;; #:phases
-       ;; (modify-phases %standard-phases
-       ;;   (replace 'check
-       ;;     (lambda _
-       ;;       (zero? (system* "py.test" "sqlalchemy_utils" "tests")))))
-    (propagated-inputs
-     `(("python-six" ,python-six)
-       ("python-sqlalchemy" ,python-sqlalchemy)))
-    (native-inputs
-     `(("python-dateutil" ,python-dateutil)
-       ("python-flexmock" ,python-flexmock)
-       ("python-psycopg2" ,python-psycopg2)
-       ("python-pytest" ,python-pytest)
-       ("python-pytz" ,python-pytz)))
-    (home-page "https://github.com/kvesteri/sqlalchemy-utils")
-    (synopsis "Various utility functions for SQLAlchemy")
-    (description
-     "SQLAlchemy-utils provides various utility functions and custom data types
-for SQLAlchemy.  SQLAlchemy is an SQL database abstraction library for Python.
-
-You might also want to install the following optional dependencies:
-@enumerate
-@item @code{python-passlib}
-@item @code{python-babel}
-@item @code{python-cryptography}
-@item @code{python-pytz}
-@item @code{python-psycopg2}
-@item @code{python-furl}
-@item @code{python-flask-babel}
-@end enumerate
-")
-    (license license:bsd-3)))
-
-(define-public python2-sqlalchemy-utils
-  (package-with-python2 python-sqlalchemy-utils))
-
-(define-public python-alembic
-  (package
-    (name "python-alembic")
-    (version "0.9.5")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (pypi-uri "alembic" version))
-       (sha256
-        (base32
-         "01gx2syqbaxh4hr9pf7pxhlb6p36qaf99140dy19lsx1paxb9p4b"))))
-    (build-system python-build-system)
-    (native-inputs
-     `(("python-mock" ,python-mock)
-       ("python-pytest-cov" ,python-pytest-cov)))
-    (propagated-inputs
-     `(("python-dateutil" ,python-dateutil)
-       ("python-sqlalchemy" ,python-sqlalchemy)
-       ("python-mako" ,python-mako)
-       ("python-editor" ,python-editor)))
-    (home-page "http://bitbucket.org/zzzeek/alembic")
-    (synopsis
-     "Database migration tool for SQLAlchemy")
-    (description
-     "Alembic is a lightweight database migration tool for usage with the
-SQLAlchemy Database Toolkit for Python.")
-    (license license:expat)))
-
-(define-public python2-alembic
-  (package-with-python2 python-alembic))
-
 (define-public python-autopep8
   (package
   (name "python-autopep8")
@@ -4475,35 +4255,6 @@ common operations on files to be invoked on those path objects directly.")
 (define-public python2-pathpy
   (package-with-python2 python-pathpy))
 
-(define-public python-pickleshare
-  (package
-    (name "python-pickleshare")
-    (version "0.5")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "https://pypi.python.org/packages/source/p/"
-                           "pickleshare/pickleshare-" version ".tar.gz"))
-       (sha256
-        (base32 "11ljr90j3p6qswdrbl7p4cjb2i93f6vn0vx9anzpshsx0d2mggn0"))))
-    (build-system python-build-system)
-    (propagated-inputs
-     `(("python-pathpy" ,python-pathpy)))
-    (home-page "https://github.com/vivainio/pickleshare")
-    (synopsis "Tiny key value database with concurrency support")
-    (description
-     "PickleShare is a small ‘shelve’-like datastore with concurrency support.
-Like shelve, a PickleShareDB object acts like a normal dictionary.  Unlike
-shelve, many processes can access the database simultaneously.  Changing a
-value in database is immediately visible to other processes accessing the same
-database.  Concurrency is possible because the values are stored in separate
-files.  Hence the “database” is a directory where all files are governed by
-PickleShare.")
-    (license license:expat)))
-
-(define-public python2-pickleshare
-  (package-with-python2 python-pickleshare))
-
 (define-public python-simplegeneric
   (package
     (name "python-simplegeneric")
@@ -4988,49 +4739,6 @@ implementation of D-Bus.")
     ;; "ValueError: unichr() arg not in range(0x10000) (narrow Python build)"
     (arguments `(#:tests? #f))))
 
-(define-public python-apsw
-  (package
-    (name "python-apsw")
-    (version "3.9.2-r1")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (pypi-uri "apsw" version))
-        (sha256
-          (base32
-           "0w4jb0wpx785qw42r3h4fh7gl5w2968q48i7gygybsfxck8nzffs"))))
-    (build-system python-build-system)
-    (inputs
-      `(("sqlite" ,sqlite)))
-    (arguments
-     `(#:phases
-       (modify-phases %standard-phases
-         (replace 'build
-           (lambda _
-             (zero?
-              (system* "python" "setup.py" "build" "--enable-all-extensions"))))
-         (add-after 'build 'build-test-helper
-           (lambda _
-             (zero?
-              (system
-               (string-append "gcc -fPIC -shared -o ./testextension.sqlext "
-                              "-I. -Isqlite3 src/testextension.c") ))))
-         (delete 'check)
-         (add-after 'install 'check
-           (lambda* (#:key inputs outputs #:allow-other-keys)
-             (add-installed-pythonpath inputs outputs)
-             (zero? (system* "python" "setup.py" "test")))))))
-    (home-page "https://github.com/rogerbinns/apsw/")
-    (synopsis "Another Python SQLite Wrapper")
-    (description "APSW is a Python wrapper for the SQLite
-embedded relational database engine.  In contrast to other wrappers such as
-pysqlite it focuses on being a minimal layer over SQLite attempting just to
-translate the complete SQLite API into Python.")
-    (license license:zlib)))
-
-(define-public python2-apsw
-  (package-with-python2 python-apsw))
-
 (define-public python-lxml
   (package
     (name "python-lxml")
@@ -6085,48 +5793,6 @@ and MAC network addresses.")
 (define-public python2-netaddr
   (package-with-python2 python-netaddr))
 
-(define-public python2-neo4j-driver
-  (package
-    (name "python2-neo4j-driver")
-    ;; NOTE: When upgrading to 1.5.0, please add a python3 variant.
-    (version "1.4.0")
-    (source (origin
-              (method url-fetch)
-              (uri (pypi-uri "neo4j-driver" version))
-              (sha256
-               (base32
-                "011r1vh182p8mm83d8dz9rfnc3l7rf7fd00cyrbyfzi71jmc4g98"))))
-    (build-system python-build-system)
-    (arguments
-     `(#:python ,python-2))
-    (home-page "https://neo4j.com/developer/python/")
-    (synopsis "Neo4j driver code written in Python")
-    (description "This package provides the Neo4j Python driver that connects
-to the database using Neo4j's binary protocol.  It aims to be minimal, while
-being idiomatic to Python.")
-    (license license:asl2.0)))
-
-(define-public python2-py2neo
-  (package
-    (name "python2-py2neo")
-    (version "3.1.2")
-    (source (origin
-              (method url-fetch)
-              (uri (pypi-uri "py2neo" version))
-              (sha256
-               (base32
-                "1f1q95vqcvlc3nsc33p841swnjdcjazddlq2dzi3qfnjqjrajxw1"))))
-    (build-system python-build-system)
-    (arguments
-     `(#:python ,python-2))
-    (home-page "http://py2neo.org")
-    (synopsis "Library and toolkit for working with Neo4j in Python")
-    (description "This package provides a client library and toolkit for
-working with Neo4j from within Python applications and from the command
-line.  The core library has no external dependencies and has been carefully
-designed to be easy and intuitive to use.")
-    (license license:asl2.0)))
-
 (define-public python-wrapt
   (package
     (name "python-wrapt")
@@ -7378,30 +7044,6 @@ minimal and fast API targeting the following uses:
 (define-public python2-execnet
   (package-with-python2 python-execnet))
 
-(define-public python-trollius-redis
-  (package
-    (name "python-trollius-redis")
-    (version "0.1.4")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (pypi-uri "trollius_redis" version))
-        (sha256
-         (base32
-          "0k3vypszmgmaipgw9xscvgm79h2zd6p6ci8gdp5sxl6g5kbqr9fy"))))
-    (build-system python-build-system)
-    ;; TODO: Tests require packaging 'hiredis'.
-    (arguments '(#:tests? #f))
-    (home-page "https://github.com/benjolitz/trollius-redis")
-    (synopsis "Port of asyncio-redis to trollius")
-    (description "@code{trollius-redis} is a Redis client for Python
-  trollius.  It is an asynchronious IO (PEP 3156) implementation of the
-  Redis protocol.")
-    (license license:bsd-2)))
-
-(define-public python2-trollius-redis
-  (package-with-python2 python-trollius-redis))
-
 (define-public python-icalendar
   (package
     (name "python-icalendar")
@@ -8273,33 +7915,6 @@ introspection of @code{zope.interface} instances in code.")
 (define-public python2-sphinx-repoze-autointerface
   (package-with-python2 python-sphinx-repoze-autointerface))
 
-(define-public python-psycopg2
-  (package
-    (name "python-psycopg2")
-    (version "2.7.3.1")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (pypi-uri "psycopg2" version))
-       (sha256
-        (base32
-         "0rda1j02ds6s28752fhmpwg761sh6jsxi1gpczqkrd28cki1cywv"))))
-    (build-system python-build-system)
-    (arguments
-     ;; Tests would require a postgresql database "psycopg2_test"
-     ;; and a running postgresql database management service.
-     `(#:tests? #f)) ; TODO re-enable after providing a test-db.
-    (inputs
-     `(("postgresql" ,postgresql))) ; libpq
-    (home-page "http://initd.org/psycopg/")
-    (synopsis "Python PostgreSQL adapter")
-    (description
-     "psycopg2 is a thread-safe PostgreSQL adapter that implements DB-API 2.0. ")
-    (license license:lgpl3+)))
-
-(define-public python2-psycopg2
-  (package-with-python2 python-psycopg2))
-
 (define-public python-vobject
   (package
     (name "python-vobject")
@@ -8934,33 +8549,6 @@ multiple processes (imagine multiprocessing, billiard, futures, celery etc).
 (define-public python2-tblib
   (package-with-python2 python-tblib))
 
-(define-public python-sqlparse
-  (package
-    (name "python-sqlparse")
-    (version "0.2.4")
-    (source (origin
-              (method url-fetch)
-              (uri (pypi-uri "sqlparse" version))
-              (sha256
-               (base32
-                "1v3xh0bkfhb262dbndgzhivpnhdwavdzz8jjhx9vx0xbrx2880nf"))))
-    (build-system python-build-system)
-    (arguments
-     `(#:phases
-       (modify-phases %standard-phases
-         (replace 'check
-           (lambda _ (zero? (system* "py.test")))))))
-    (native-inputs
-     `(("python-pytest" ,python-pytest)))
-    (home-page "https://github.com/andialbrecht/sqlparse")
-    (synopsis "Non-validating SQL parser")
-    (description "Sqlparse is a non-validating SQL parser for Python.  It
-provides support for parsing, splitting and formatting SQL statements.")
-    (license license:bsd-3)))
-
-(define-public python2-sqlparse
-  (package-with-python2 python-sqlparse))
-
 (define-public python-greenlet
   (package
     (name "python-greenlet")
@@ -10537,32 +10125,6 @@ PNG, JPEG, JPEG2000 and GIF files in pure Python.")
     (description "This package provides console text coloring for Python.")
     (license license:bsd-3)))
 
-(define-public python-sadisplay
-  (package
-    (name "python-sadisplay")
-    (version "0.4.6")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (pypi-uri "sadisplay" version))
-      (sha256
-        (base32
-          "0zqad2fl7q26p090qmqgmxbm6iwgf9zij1w8da1g3wdgjj72ql05"))))
-    (build-system python-build-system)
-    (propagated-inputs
-      `(("python-sqlalchemy" ,python-sqlalchemy)))
-    (native-inputs
-      `(("python-nose" ,python-nose)))
-    (home-page "https://bitbucket.org/estin/sadisplay")
-    (synopsis "SQLAlchemy schema displayer")
-    (description "This package provides a program to build Entity
-Relationship diagrams from a SQLAlchemy model (or directly from the
-database).")
-    (license license:bsd-3)))
-
-(define-public python2-sadisplay
-  (package-with-python2 python-sadisplay))
-
 (define-public python-argcomplete
   (package
     (name "python-argcomplete")
@@ -11693,93 +11255,6 @@ several utilities, as well as an API for building localization tools.")
 (define-public python2-translate-toolkit
   (package-with-python2 python-translate-toolkit))
 
-(define-public python-mysqlclient
-  (package
-    (name "python-mysqlclient")
-    (version "1.3.10")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (pypi-uri "mysqlclient" version))
-       (sha256
-        (base32
-         "0qkj570x4rbsblji6frvsvp2v1ap32dqzj1lq62zp9515ffsyaj5"))))
-    (build-system python-build-system)
-    (native-inputs
-     `(("mariadb" ,mariadb)
-       ("nose" ,python-nose)
-       ("mock" ,python-mock)
-       ("py.test" ,python-pytest)))
-    (inputs
-     `(("mysql" ,mysql)
-       ("libz" ,zlib)
-       ("openssl" ,openssl)))
-    (home-page "https://github.com/PyMySQL/mysqlclient-python")
-    (synopsis "MySQLdb is an interface to the popular MySQL database server for Python")
-    (description "MySQLdb is an interface to the popular MySQL database server
-for Python.  The design goals are:
-@enumerate
-@item Compliance with Python database API version 2.0 [PEP-0249],
-@item Thread-safety,
-@item Thread-friendliness (threads will not block each other).
-@end enumerate")
-    (license license:gpl2)))
-
-(define-public python2-mysqlclient
-  (package-with-python2 python-mysqlclient))
-
-(define-public python-hiredis
-  (package
-    (name "python-hiredis")
-    (version "0.2.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (pypi-uri "hiredis" version))
-       (sha256
-        (base32
-         "1dfm2k9l9zar9nw9fwmm74zrgraxdxs04vx9li56fjcf289qx5fa"))))
-    (build-system python-build-system)
-    (arguments
-     ;; no tests
-     `(#:tests? #f))
-    (home-page "https://github.com/redis/hiredis-py")
-    (synopsis "Python extension that wraps protocol parsing code in hiredis")
-    (description "Python-hiredis is a python extension that wraps protocol
-parsing code in hiredis.  It primarily speeds up parsing of multi bulk replies.")
-    (license license:bsd-3)))
-
-(define-public python2-hiredis
-  (package-with-python2 python-hiredis))
-
-(define-public python-fakeredis
-  (package
-    (name "python-fakeredis")
-    (version "0.8.2")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (pypi-uri "fakeredis" version))
-       (sha256
-        (base32
-         "0zncahj3byyasyfx9i7k991ph0n0lq8v3a21pqri5qxn9564bk9r"))))
-    (build-system python-build-system)
-    (arguments
-     ;; no tests
-     `(#:tests? #f))
-    (home-page "https://github.com/jamesls/fakeredis")
-    (synopsis "Fake implementation of redis API for testing purposes")
-    (description "Fakeredis is a pure python implementation of the redis-py
-python client that simulates talking to a redis server.  This was created for a
-single purpose: to write unittests.  Setting up redis is not hard, but many time
- you want to write unittests that do not talk to an external server (such as
-redis).  This module now allows tests to simply use this module as a reasonable
-substitute for redis.")
-    (license license:bsd-3)))
-
-(define-public python2-fakeredis
-  (package-with-python2 python-fakeredis))
-
 (define-public python-packaging
   (package
     (name "python-packaging")
@@ -11812,27 +11287,6 @@ information.")
 (define-public python2-packaging
   (package-with-python2 python-packaging))
 
-(define-public python-sql
-  (package
-    (name "python-sql")
-    (version "0.9")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (pypi-uri "python-sql" version))
-       (sha256
-        (base32
-         "0p6kaqj02vz0habmdx37zjk6hjxdfm8aw737zs059vvpr70ird87"))))
-    (build-system python-build-system)
-    (home-page "https://python-sql.tryton.org/")
-    (synopsis "Library to write SQL queries in a pythonic way")
-    (description "@code{python-sql} is a library to write SQL queries, that
-transforms idiomatic python function calls to well-formed SQL queries.")
-    (license license:bsd-3)))
-
-(define-public python2-sql
-  (package-with-python2 python-sql))
-
 (define-public python-relatorio
   (package
     (name "python-relatorio")
diff --git a/gnu/packages/tryton.scm b/gnu/packages/tryton.scm
index 33d01f058d..2e669510e6 100644
--- a/gnu/packages/tryton.scm
+++ b/gnu/packages/tryton.scm
@@ -20,6 +20,7 @@
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (gnu packages)
   #:use-module (gnu packages check)
+  #:use-module (gnu packages databases)
   #:use-module (gnu packages gtk)
   #:use-module (gnu packages python)
   #:use-module (gnu packages python-web)